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Appendix I <br /> Historical Groundwater Oxygenate and Fuel Additive Analytical Data <br /> Stockton Terminals Technical Committee <br /> Port of Stockton <br /> Stockton, California <br /> Sample Sample MTBE DIPE ETBE TAME TBA Methanol Ethanol 1,2-DCA EDB <br /> Identification Date (pg/L) (pg/L) (Ng/L) (pg/L) (Ng/L) (Ng/L) (Ng/L) (pg/L) (pg/L) Comments <br /> OW-4A 10/31/07 <0.50 <0.50 <0.50 <0.50 150 2,100 <50 <br /> OW-4A 02/06/08 <0.50 <0.50 <0.50 <0.50 72 420 <50 <br /> OW-4A 05/07/08 <0.50 <0.50 0.58 <0.50 180 <50 <50 <br /> OW-4A 08/06/08 <0.50 <0.50 <0.50 <0.50 170 <50 <50 <br /> OW-4A 11/04/08 <0.50 <0.50 <0.50 <0.50 99 <50 <50 <br /> OW-4A 02/04/09 <0.50 <0.50 <0.50 <0.50 10 79 <50 <br /> OW-4A 05/04/09 <0.50 <0.50 <0.50 <0.50 32 <50 <50 <br /> OW-4A 08/05/09 <0.50 <0.50 <0.50 <0.50 16 <50 <50 <br /> OW-4A 11/04/09 <0.50 -- -- -- 10 72 -- <br /> OW-4A 02/03/10 <0.50 -- -- -- 5.5 98 -- <br /> OW-41B 10/29/02 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <5.0 <br /> OW-41B 02/26/03 <0.50 -- -- -- -- -- -- <br /> OW-41B 05/29/03 <0.50 <br /> OW-41B 08/07/03 <0.50 <br /> OW-41B 11/07/03 <0.50 <br /> OW-41B 03/04/04 <0.50 <br /> OW-41B 05/18/04 <0.50 <br /> OW-41B 08/19/04 <0.50 <br /> OW-41B 11/16/04 <0.50 <br /> OW-41B 02/15/05 <0.50 <br /> OW-41B 05/18/05 <0.50 <br /> OW-41B 09/02/05 10 <br /> OW-41B 09/02/05 10 <br /> OW-41B 12/02/05 1.7 <br /> OW-41B 02/08/06 <0.50 <br /> OW-41B 05/11/06 <0.50 <br /> OW-41B 08/09/06 <0.50 <br /> OW-41B 11/02/06 <0.50 <br /> OW-41B 01/30/07 <0.50 <br /> OW-41B 05/03/07 <0.50 -- -- -- -- -- -- <br /> OW-41B 07/31/07 <0.50 0.60 <0.50 <0.50 <5.0 <50 <50 <br /> OW-41B 10/31/07 <0.50 <0.50 <0.50 <0.50 6.5 <50 <50 <br /> OW-41B 02/06/08 <0.50 0.55 <0.50 <0.50 20 87 <50 <br /> OW-41B 05/07/08 <0.50 <0.50 <0.50 <0.50 18 <50 <50 <br /> OW-41B 08/06/08 <0.50 <0.50 <0.50 <0.50 <5.0 <50 <50 <br /> OW-41B 11/04/08 <0.50 <0.50 <0.50 <0.50 10 <50 <50 <br /> OW-41B 02/04/09 <0.50 <0.50 <0.50 <0.50 35 <50 <50 <br /> 1 Q10 STTC gwtables.xlsx Page 44 of 77 <br />